Thomas Troeger a écrit :
Hello,
I have a class that looks like this:
class A(object):
def __init__(self, a=0, b=1):
self.a, self.b=a, b
def __str__(self):
return "%s(%d,%d)" % (type(a).__name__, self.a, self.b)
Given the output example you give, I assume there's a typo here and you
meant:
return "%s(%d,%d)" % (type(self).__name__, self.a, self.b)
I want to have a list of such classes instantiated automatically on
startup of my program. My current (most probably clumsy) implementation
looks like this:
bla=[A(x[0], x[1]) for x in ((1, 2), (3, 4))]
Not clumsy at all, and almost perfectly pythonic. The only improvment I
can think of is:
bla = [A(*args) for args in ((1,2), (3,4))]
giving the following:
>>> map(str, bla)
['A(1,2)', 'A(3,4)']
Is there a better way to construct a list of such classes?
Note that it's not a list of classes, but a list of instances of A. But
given your specs, nope, your approach is the right one.
Basically
what I want is something similar to the following C example:
struct {
int a;
int b;
} bla[]={ {1, 2}, {3, 4} };
Basically (no pun intended[1]), Python is not C. Trying to write C in
Python will only buy you pain and frustration (and this can be
generalized for any combination of two languages for any known
programming language).
[1] well... in fact, yes... !-)
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